# FOSDEM Companion (open-source calendar and contacts app)

> FOSDEM Companion is a free, open-source calendar and contacts app for Android. Schedule browser for the FOSDEM conference. It has 154 GitHub stars and is released under the Apache-2.0 license, and you can install it from F-Droid and Google Play.

Advanced schedule browser for the FOSDEM conference in Brussels, Belgium. Download the most recent schedule and browse it offline. Features: * Browse sessions by day and by track * Instant search * Track schedule view optimized for phones and tablets * Full sessions details with related links, speakers info and room maps * Add sessions directly to your calendar * Share sessions with a link to their page on the FOSDEM website * Manage bookmarks and get notified when a bookmarked session is about to start * “Live” view: during FOSDEM, watch the realtime updated list of currently running and upcoming sessions * Includes a simple map of the site.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/cbeyls/fosdem-companion-android |
| Platforms | Android |
| Built with | Kotlin |
| GitHub stars | 154 |
| License | Apache-2.0 (open source) |
| F-Droid | https://f-droid.org/packages/be.digitalia.fosdem/ (package be.digitalia.fosdem) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=be.digitalia.fosdem |
| App Store | not linked |
| Website | https://www.digitalia.be/ |
| Official | no |
| Category | Calendar & contacts |
| Latest release | 2.3.0 (Jan 16, 2026) |
| Last commit | Aug 30, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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